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App Inventor 2 扩展 · App Inventor 2 中文网
...import an extension from an aix file on your computer or you can specify a URL to import from the Web.
Figure 1: Importing an extension
When you import an extension, App Inventor will give you the opportunity to rename it, as shown in the figure.
Figure 2: Renaming an extension when you impor...
Replacing H1 text with a logo image: best method for SEO and accessibility?
... position:absolute;
width:100%;
height:100%;
background:#ffffff url(image.png) no-repeat left top;
z-index:100; /* Places <span> on top of <a> text */ }
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How to enter command with password for git pull?
...ttps connection on the command line. You just need to specify the complete URL to git pull and include the credentials there:
git pull https://username:password@mygithost.com/my/repository
You do not need to have the repository cloned with the credentials before, this means your credentials don't...
How do I migrate an SVN repository with history to a new Git repository?
...n help).
All common protocols are allowed: svn://, http://, https://. The URL should target the base repository, something like http://svn.mycompany.com/myrepo/repository. The URL string must not include /trunk, /tag or /branches.
Note that after executing this command it very often looks like the...
jQuery - hashchange event
...hanged' );
} );
Occasionally I come across legacy systems where hashbang URL's are still used and this is helpful. If you're building something new and using hash links I highly suggest you consider using the HTML5 pushState API instead.
...
How to integrate nodeJS + Socket.IO and PHP?
... message: msg } );
// Ajax call for saving datas
$.ajax({
url: "./ajax/insertNewMessage.php",
type: "POST",
data: { name: nameVal, message: msg },
success: function(data) {
}
});
return false;
});
socket.on( 'message', function( data ) {
...
How to Get the Title of a HTML Page Displayed in UIWebView?
... Disabled Use this :-
NSString * htmlCode = [NSString stringWithContentsOfURL:[NSURL URLWithString:@"http://www.appcoda.com"] encoding:NSASCIIStringEncoding error:nil];
NSString * start = @"<title>";
NSRange range1 = [htmlCode rangeOfString:start];
NSString * end = @"</title>";
NSRange...
Deploy a project using Git push
...onfig file and add your web server as a remote:
[remote "production"]
url = username@webserver:/path/to/htdocs/.git
On the server, replace .git/hooks/post-update with this file (in the answer below)
Add execute access to the file (again, on the server):
chmod +x .git/hooks/post-update
Now, j...
How do I query using fields inside the new PostgreSQL JSON datatype?
...> operator. For example,
SELECT data->'images'->'thumbnail'->'url' AS thumb FROM instagram;
see http://clarkdave.net/2013/06/what-can-you-do-with-postgresql-and-json/ for some nice examples and a tutorial.
shar...
How to check with javascript if connection is local host?
...r check your custom domain name against a substring, in this case ".local" urls, such as http://testsite.local
var myUrlPattern = '.local';
if (window.location.hostname === "localhost" || location.hostname === "127.0.0.1" || window.location.hostname.indexOf(myUrlPattern) >= 0) {
alert("It's ...